How To Weld Galvanized Sheet Metal

Galvanizing is a method that involves coating the metal with zinc in order to prevent rust or corrosion.

How to weld galvanized sheet metal.

A standard arc welder is undoubtedly the best way to weld galvanized. Start on one end of the seam if you re. E6011 is ok and recommended if you have an ac only power source. Use the largest electrode possible especially in fillet welds on.

Use an e6010 electrode. Welding tips and tricks answer. Use an arc welder to weld galvanized steel. If you can t do this use a filler material on the zinc coated portion of your welding area.

Use an inline whipping technique the back and forth motion will help vaporize the zinc coating and prevent porosity and cracks. Welding of the galvanized steel is done similar to the welding of bare metal with a difference of low vaporization temperature in the metals with zinc coating. It depends on what you are welding and how critical the application. Super alloy 1 350 solder is used to fill a large gap in 2 pieces of galvanized steel.

You are right about removing galvanized coatings sort of. They were made from galvanized sheet metal and we didnt clean crap. For example i worked for a while welding big tables that held furniture stripper chemicals. Galvanized steel is salt water resistant and is frequently used in marine and industrial applications.

When welding the steel that is galvanized the welder has to be set a bit hotter than normal and make sure to give a wiggling movement between the workpieces that are galvanized in order to ensure a good weld pool at the beginning. You will need a skilled welder to weld galvanized steel successfully and the ideal method is to remove the zinc coating from the area where you are welding. You can use a welding rod of any size as long as it works.